/*
 * ProGuard -- shrinking, optimization, obfuscation, and preverification of Java bytecode.
 *
 * Copyright (c) 2002-2018 GuardSquare NV
 *
 * This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later
 * version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with this program; if not, write to the Free
 * Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
package proguard.io;

import java.io.*;

/**
 * This DataEntryWriter lets another DataEntryWriter write the parent data entries.
 *
 * @author Eric Lafortune
 */
public class ParentDataEntryWriter implements DataEntryWriter {
    private DataEntryWriter dataEntryWriter;

    /**
     * Creates a new ParentDataEntryWriter.
     * 
     * @param dataEntryWriter the DataEntryWriter to which the writing will be delegated, passing the data entries'
     *        parents.
     */
    public ParentDataEntryWriter(DataEntryWriter dataEntryWriter) {
        this.dataEntryWriter = dataEntryWriter;
    }

    // Implementations for DataEntryWriter.

    public boolean createDirectory(DataEntry dataEntry) throws IOException {
        return dataEntryWriter.createDirectory(dataEntry.getParent());
    }

    public boolean sameOutputStream(DataEntry dataEntry1, DataEntry dataEntry2) throws IOException {
        return dataEntryWriter.sameOutputStream(dataEntry1.getParent(), dataEntry2.getParent());
    }

    public OutputStream createOutputStream(DataEntry dataEntry) throws IOException {
        return dataEntryWriter.createOutputStream(dataEntry.getParent());
    }

    public void close() throws IOException {
        dataEntryWriter.close();
        dataEntryWriter = null;
    }

    public void println(PrintWriter pw, String prefix) {
        pw.println(prefix + "ParentDataEntryWriter");
        dataEntryWriter.println(pw, prefix + "  ");
    }
}
